The following files will be needed:
Z710 Android 4.1.1 image upgrade instruction
Z710 Android 4.1.1 version image_PCBA
Z710 Android 4.1.1 version image_PHS8_Firmware_Rxxxxxxxx
Z710 4.1.1 Version image G3.xxxxxxxxxNOTE: Be sure to back up your data prior to upgrading.